Search Results - "WHEELER, Patricia A"

Release of Dissolved Organic Matter by Coastal Diatoms by Wetz, Michael S., Wheeler, Patricia A.

“…Dissolved organic matter (DOM) production was examined in axenic batch cultures of five coastal diatom species. For "Chaetoceros decipiens", dissolved organic…”
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Oxygen production and carbon sequestration in an upwelling coastal margin by Hales, Burke, Karp-Boss, Lee, Perlin, Alexander, Wheeler, Patricia A.

“…We examined high‐resolution cross‐shelf distributions of particulate organic carbon (POC) and dissolved O2 during the upwelling season off the Oregon coast…”
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Temporal and spatial variation in stocks of autotrophic and heterotrophic microbes in the upper water column of the central Arctic Ocean by SHERR, Evelyn B, SHERR, Barry F, WHEELER, Patricia A, THOMPSON, Karen

“…As part of the SHEBA/JOIS drift experiment,we continually analysed abundance and biomass ofautotrophic and heterotrophic microbes in the upper 120 m ofthe…”
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Riverine Input of Macronutrients, Iron, and Organic Matter to the Coastal Ocean off Oregon, U.S.A., during the Winter by Wetz, Michael S., Hales, Burke, Chase, Zanna, Wheeler, Patricia A., Whitney, Michael M.

“…Three cross-shelf transects were conducted off northern Oregon in February, 2003, coincident with flooding of Coast Range rivers, to assess the riverine impact…”
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New measurements of phytoplankton and ice algal production in the Arctic Ocean by Gosselin, Michel, Levasseur, Maurice, Wheeler, Patricia A., Horner, Rita A., Booth, Beatrice C.

“…During the Canada/U.S. 1994 Arctic Ocean Section, algal biomass (Chlorophyll a) and primary production were measured in the water column, at the ice-water…”
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Production and Partitioning of Organic Matter during Simulated Phytoplankton Blooms by Wetz, Michael S., Wheeler, Patricia A.

“…Few studies have examined the partitioning of organic matter in upwelling systems, despite the fact that these systems play a key role in carbon and nitrogen…”
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Benthic-Pelagic Links and Rocky Intertidal Communities: Bottom-Up Effects on Top-Down Control? by Menge, B A, Daley, B A, Wheeler, P A, Dahlhoff, E, Sanford, E, Strub, P T

“…Insight into the dependence of benthic communities on biological and physical processes in nearshore pelagic environments, long considered a ``black box,'' has…”
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Active cycling of organic carbon in the central Arctic Ocean by Wheeler, Patricia A, Gosselin, Michel, Sherr, Evelyn, Thibaultc, Delphine, Kirchman, David L, Benner, Ronald, Whitledge, Terry E

“…Studies show that the central Arctic region is not a biological desert. Although it is less productive than oligotrophic ocean regions not covered by ice, it…”
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Rocky Intertidal Oceanography: An Association Between Community Structure and Nearshore Phytoplankton Concentration by Menge, Bruce A., Daley, Bryon A., Wheeler, Patricia A., Strub, P. Ted

“…On Oregon coastal rocky shores, filter-feeders were relatively abundant and macrophytes were relatively scarce at Strawberry Hill, whereas opposite abundance…”
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Uptake of ammonium and nitrate by heterotrophic bacteria and phytoplankton in the sub-Arctic Pacific by Kirchman, David L., Wheeler, Patricia A.

“…Heterotrophic bacteria are known to account frequently for a large fraction of NH + 4 uptake in many oceans, but NO - 3 uptake by bacteria is not thought to be…”
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Iron, nutrient, and phytoplankton distributions in Oregon coastal waters by Chase, Zanna, van Geen, Alexander, Kosro, P. Michael, Marra, John, Wheeler, Patricia A.

“…The relationship between iron and nitrate concentrations was examined off the coast of Oregon during the upwelling season. Surface Fe and N (nitrate + nitrite)…”
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OCEAN ACIDIFICATION IN THE CALIFORNIA CURRENT SYSTEM by HAURI, CLAUDINE, GRUBER, NICOLAS, PLATTNER, GIAN-KASPER, ALIN, SIMONE, FEELY, RICHARD A., HALES, BURKE, WHEELER, PATRICIA A.

“…Eastern boundary upwelling systems (EBUS) are naturally more acidic than most of the rest of the surface ocean. Observations of EBUS already show pH values and…”
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Ammonium Recycling Limits Nitrate Use in the Oceanic Subarctic Pacific by Wheeler, Patricia A., Kokkinakis, Steven A.

“…Seasonal and diel changes in nutrient concentrations and nitrogen assimilation rates were used to assess the effects of $NH_4^+$ on $NO_3^-$ assimilation…”
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Cold halocline, increased nutrients and higher chlorophyll off Oregon in 2002 by Wheeler, Patricia A., Huyer, Adriana, Fleischbein, Jane

“…Observed changes in the nutrient levels in the halocline of the California Current during 2002 indicated a natural eutrophication that was accompanied by…”
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Ecological Dynamics in the Subarctic Pacific, a Possibly Iron-Limited Ecosystem by Miller, Charles B., Frost, Bruce W., Wheeler, Patricia A., Landry, Michael R., Welschmeyer, Nicholas, Powell, Thomas M.

“…It has been suggested that production in offshore waters of the subarctic Pacific is limited by availability of dissolved Fe. Although that is not yet…”
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Degradation of phytoplankton-derived organic matter: Implications for carbon and nitrogen biogeochemistry in coastal ecosystems by Wetz, Michael S., Hales, Burke, Wheeler, Patricia A.

“…Experiments were conducted using seawater from the Oregon continental shelf to determine: (1) rates of phytoplankton-derived particulate organic matter (POM)…”
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Surface Heat Budget of the Arctic Ocean by Uttal, Taneil, Curry, Judith A., McPhee, Miles G., Perovich, Donald K., Moritz, Richard E., Maslanik, James A., Guest, Peter S., Stern, Harry L., Moore, James A., Turenne, Rene, Heiberg, Andreas, Serreze, Mark. C., Wylie, Donald P., Persson, Ola G., Paulson, Clayton A., Halle, Christopher, Morison, James H., Wheeler, Patricia A., Makshtas, Alexander, Welch, Harold, Shupe, Matthew D., Intrieri, Janet M., Stamnes, Knut, Lindsey, Ronald W., Pinkel, Robert, Pegau, W. Scott, Stanton, Timothy P., Grenfeld, Thomas C.

“…A summary is presented of the Surface Heat Budget of the Arctic Ocean (SHEBA) project, with a focus on the field experiment that was conducted from October…”
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The Newport line off Oregon – Studies in the North East Pacific by Huyer, Adriana, Wheeler, Patricia A., Strub, P. Ted, Smith, Robert L., Letelier, Ricardo, Kosro, P. Michael

“…The Newport Hydrographic (NH) Line along 44.65 super(o)N off central Oregon was sampled seasonally during two epochs: 1961-1971 through the TENOC program and…”
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Carbon Limitation of Ammonium Uptake by Heterotrophic Bacteria in the Subarctic Pacific by Kirchman, David L., Keil, Richard G., Wheeler, Patricia A.

“…The purpose of this study was to test the hypothesis that $NH_4^+$ uptake by heterotrophic bacteria in the subarctic Pacific is C limited. Addition of glucose…”
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Response of bacteria to simulated upwelling phytoplankton blooms by Wetz, Michael S., Wheeler, Patricia A.

“…Until recently, studies of the fate of primary production in coastal upwelling systems have focused mainly on export through sinking of particulate organic…”
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